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67 4 speed conversion

14K views 20 replies 10 participants last post by  zyaal8r  
#1 ·
Hi, I in the middle of a tranny swap on my 1967 camaro rs convertible. I pulled out the existing th350 and replaced it with a Muncie m21. The car is an original console car with the power glide on the floor. My problem is that my new transmission the 4 speed is not lining up with the original floor cut out. I don't wish to cut the floors. Installed a 621 bell housing with an 11 inch clutch, and a hurst completion shifter. Are the holes different for an auto to a 4 speed? Or am I doing something wrong?

Sleepless in Cape Coral
 
#7 ·
Are the holes different for an auto to a 4 speed?

Sleepless in Cape Coral

No they are the same.

When I did mine I used Hurst 391 4339 (that's the number on the box).

Also the Hurst reverse light switch works great and easy to install.
 
#13 ·
Shifter- 3914339
Install kit- 3734529

For 67 Camaro
The numbers Luwi67 posted are the part numbers of the shifter and install kit I used. This shifter fits the factory hole in my '67 perfectly .

The 3734529 install kit has a U-bolt clamp the goes around the back of the tail housing of the transmission.

Here are the installation instructions:
3734529.pdf

Image


Image
 
#14 ·
Great information. I will be doing this swap on my cousin's 67.
 
#15 ·
that install kit looks like its for a Chevelle that used the # 7773 mount plate

and the rods are on backward as the adjustment end should be on the shifter

your pics don't show the neck of the shifter which needs to have the large offset as shown in the other pics

the number you need is the one under the reverse light bracket
 
#17 ·
Ok, received the installation kit and installed the adapter plate and all the rods only to find out that my shifter linkages had been altered. Spent the majority of the day taking the shifter apart, cleaning and lubing before rebuilding it correctly. The person who sold me the tranny must have swap 1-2 and 3-4 links on the shifter. (Not sure why?) Shifter is now properly aligned with console hole.

I now have a new problem, the clutch fork is right up against the firewall!
What has my midlife crisis gotten himself into now. Please let me know what can I do to correct this problem.